<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="test"></div>
    <script type="text/javascript" src="../js/react.development.js"></script>
    <script type="text/javascript" src="../js/react-dom.development.js"></script>
    <script type="text/javascript" src="../js/babel.min.js"></script>
    <script type="text/javascript" src="../js/prop-types.js"></script>
    <script type="text/babel">
        class Demo extends React.Component{
            showData=()=>{
                const {input1} = this
                console.log(input1.value);
            }
            showData2=()=>{
                const {input2} = this
                console.log(input2.value);
            }
            render() {
                return(
                    <div>
                        <input ref={c => this.input1 = c}  type="text"/>
                        <button onClick={this.showData}>点击</button>
                        <input ref={c => this.input2 = c} onBlur={this.showData2} type="text"/>
                    </div>
                )
            }
        }
        ReactDOM.render(<Demo/>,document.getElementById('test'))
    </script>

</body>

</html>